<template>
        <div class="todo-header">
        <input type="text" 
        placeholder="请输入你的任务名称，按回车键确认"
         @keydown.enter="addTodos"
        />
      </div>
</template>

<script>
import { v4 as uuidv4 } from "uuid";

export default {
name:"Header",
methods:{
  addTodos(e){
    if(!e.target.value.trim()) return alert("请输入正确内容")
      //调用$bus上的newTodo事件 来给List传值
      this.$bus.$emit("newTodo",{
        id:uuidv4(),
        thing:e.target.value,
        done:false
      })
  }
}
}

</script>

<style scoped>
/*header*/
.todo-header input {
  width: 560px;
  height: 28px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 7px;
}

.todo-header input:focus {
  outline: none;
  border-color: rgba(82, 168, 236, 0.8);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(82, 168, 236, 0.6);
}
</style>